JSTests/test262/test/built-ins/Array/prototype/indexOf/15.4.4.14-9-6.js

// Copyright (c) 2012 Ecma International.  All rights reserved.
// This code is governed by the BSD license found in the LICENSE file.

/*---
esid: sec-array.prototype.indexof
es5id: 15.4.4.14-9-6
description: Array.prototype.indexOf must return correct index(null)
---*/

  var obj = {toString:function (){return null}};
  var _null = null;
  var a = new Array(true,undefined,0,false,_null,1,"str",0,1,obj,true,false,null);

assert.sameValue(a.indexOf(null), 4, 'a[4]=_null');